Hi

I am new to this hobby and crashed my trainer with an ST46 engine. (This is the Ringed Piston Engine) I was advised not to turn the Prop, and to disassemble the engine and clean it thoroughly which I did. My problem is that now I have no idea which direction the Sleeve was in when I took it apart. (I know I should have marked it). There is a notch on the sleeve which obviously aligns with something, but I cannot find whether this should be towards the front, rear or a particular side ...I can't seem to find any alignment marks on the cylinder area. Can anybody Help.

Thanks

Doug